From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Eric Abrahamsen Newsgroups: gmane.emacs.help Subject: Re: watching for variable assignment Date: Mon, 10 Mar 2014 17:59:48 +0800 Message-ID: <8761nm9xwr.fsf@ericabrahamsen.net> References: <87lhwih0ij.fsf@ericabrahamsen.net> <87lhwicsgc.fsf@gmail.com> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1394445468 16304 80.91.229.3 (10 Mar 2014 09:57:48 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Mon, 10 Mar 2014 09:57:48 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Mon Mar 10 10:57:56 2014 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1WMwxv-000343-Ei for geh-help-gnu-emacs@m.gmane.org; Mon, 10 Mar 2014 10:57:47 +0100 Original-Received: from localhost ([::1]:47716 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WMwxv-0006LS-63 for geh-help-gnu-emacs@m.gmane.org; Mon, 10 Mar 2014 05:57:47 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:36699) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WMwxe-0006LK-VS for help-gnu-emacs@gnu.org; Mon, 10 Mar 2014 05:57:37 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1WMwxY-0001SA-Qp for help-gnu-emacs@gnu.org; Mon, 10 Mar 2014 05:57:30 -0400 Original-Received: from plane.gmane.org ([80.91.229.3]:49337) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WMwxY-0001Rx-KE for help-gnu-emacs@gnu.org; Mon, 10 Mar 2014 05:57:24 -0400 Original-Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1WMwxX-0002fs-Fs for help-gnu-emacs@gnu.org; Mon, 10 Mar 2014 10:57:23 +0100 Original-Received: from 114.248.1.149 ([114.248.1.149]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Mon, 10 Mar 2014 10:57:23 +0100 Original-Received: from eric by 114.248.1.149 with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Mon, 10 Mar 2014 10:57:23 +0100 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 19 Original-X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: 114.248.1.149 User-Agent: Gnus/5.13001 (Ma Gnus v0.10) Emacs/24.3 (gnu/linux) Cancel-Lock: sha1:Z5h5o7MLeq7I9x0wXbUAMqmCl7c= X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 80.91.229.3 X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Original-Sender: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.help:96384 Archived-At: Jambunathan K writes: > Eric Abrahamsen writes: > >> I'm trying to somehow trigger a message or a backtrace whenever that >> variable's value changes. > > > You are looking for a "Write Breakpoint". I haven't done much Elisp > debugging. Going by the docs, the following looks promising. > > (info "(elisp) Global Break Condition") Hey thanks! That's a new one for me, and does indeed look promising. I've set edebug-global-break-condition to (eq nnimap-split-fancy nil), and will see what happens. It says it tests the expression at every "stop point". I haven't explicitly set any stop points; hopefully they are set automatically, since the whole point of this is that I don't know where to check for the assignment.